Window chair or scaffold.



W. E. EASTMAN.

WINDOW CHAIR 0R SCAFFOLD.

APPLICATION FILED APR. 22. 1915.

Patented May 2, 1916.

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WINDOW CHAIR OR SCAFFOLD.

APPLICATION FILED APR 22, 1915.

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WILLIAM E. EASTMAN, OF PORTLAND, OREGON.

WINDOW CHAIR OR SCAFFOLD.

Application filed April 22, 1915.

To all whom it may concern Be it known that I, WVILLIAM E. EASTMAN, a citizen of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented certain new and useful Improvements in Window Chairs or scaffolds; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in.

window chairs or scaffolds and more particularly to the brackets employed as supports for use in forming such a chair.

I The primary object of the invention is to provide a chair of this character which is adjustable to fit any width of window or any thickness of wall.

Another object of the invention is to provide a device of this character which, while thoroughly strong and eflicient for the purposes for which it is designed, affording a sufficient support outside a window for use by a person in washing the outer faces of the window, yet may be readily collapsed for storage or other purposes and quickly assembled for use when desired.

With these and other objects in view, the invention consists of certain novel features of construction, and the combination and arrangement of parts as will be more fully described and claimed.

In the accompanying drawings: Figure 1 represents a perspective view of the device applied to a window. Fig. 2 represents a side elevation of the chair applied with the wall of the building on which it is mounted shown in vertical section. Fig. 3 is a detail perspective view of one of the bracket legs employed for constructing a chair of this character. Fig. 4: is adetail cross section taken on the, line of Fig. 2. Fig. 5 is a cross section taken on the line 55 of Fig. 2. Fig. 6 is a rear elevation, parts being shown, in section, of the platform.

In the embodiment illustrated a window chair 1 is shown composed of two side members 2 and 3 which are similarly constructed and are designed to support opposite ends of a platform 4:. Each of these side members comprises a horizontal bar or beam 5 which is made of any suittble or desired length to adapt it to span a window sill S of a window to which the device is to be ap-' Specification of Letters Patent.

Patented May 2, 1916.

Serial No. 23,227.

plied with its opposite ends projecting beyond said window sill S, one end extending into the room in which said window is mounted and the other beyond the outer face of the building. Adjustably mounted on the inner end of this beam 5 which is located within the room when the device is in use is a clamp 6 which is adapted to be moved longitudinally on said beam to adapt the device to fit walls of varying thickness. This clamp is here shown substantially L-shaped in form with one arm thereof having a loop or opening 7 through which the beam 5 passes and in which is designed to be inserted a wedge 8 for locking said clamp in adjusted position. The free arm 9 of said clamp which is designed to engage the inner wall of the room below the window sill S is here shown provided with a protecting member 10 to prevent marring the finish and to afiord an extended bearing surface for the clamp. It is of course, to be understood that the beam 2 is provided with a similar clamp and that one of said beams is designed to be mounted at one side of the window and the other at the opposite side thereof as is shown clearly in Fig. 1.

Adjustably mounted on the beam 2 at a point spaced from the clamp 6 and which is designed to be disposed outside the window is an upright depending support in the form of a bar 11 having an aperture 11 in its upper end through which extends a bolt or rivet 11 disposed between the downwardly extending free ends of the metal strap 12 which is formed into a loop 12 surrounding the beam 5 and slidably engaged therewith. This loop 12 is designed to abut at its rear or inner edge against alaterally extending stop pin 11 formed on the outer face of said beam. This bar 11 is provided with a plurality of upwardly opening sockets 13 formed in the outer edge thereof and which are designed to form seats to receive a cross bar of the platform supporting brace or leg 14. to be described. Any number of these sockets or seats 13 may be provided and they may be arranged at any desired distance apart being preferably placed close together to provide for the adjustment of the supporting legs of the chair. Mounted on the outer end of the beam 2 is a supporting collar or clevis in form of a strap of metal 15 shown encircling said beam and having its free ends bent downwardly to form lugs 16 through which a bolt 17 extends for connecting said collar to the beam 2 and also is designed to extend through the outer end of the leg 11 for pivotally connecting it to said beam. This leg or brace 14: is shown substantially A-shaped in form being composed of two side bars 18 and 19 having the meeting faces of one end thereof beveled as shown at 20 to adapt it to be securely clamped to the lug 16 of the collar 15 and to position the bars 18 and 19 thereof so that they diverge toward their outer or lower ends. These side bars 18 and 19 are connected intermediately of their ends preferably near their outer free ends by a cross rod 21 which while it reinforces and braces said bars 18 and 19 also is'designed to be mounted in one of the sockets 13 of the bar 11 for supporting the leg 14 in adjusted position.

lVhcn applied to a window, the beams 2 and 3 are disposed at opposite sides of the window extending transversely across the window sill S and the clamps 6 carried by their inner ends are engaged with the wall of the room below said sill and secured by inserting the locking wedges 8. The legs 1 1 are then suitably positioned relative to the depending bars 11 to support theouter ends of the beams in horizontal relation and the cross bears 21 of said legs are engaged with suitably disposed registering sockets 13, the free ends of said legs engaging and bearing against the outer face of the building and thereby reliably bracing the beams and holding them ready to receive the platform 4. This platform 1 as shown is provided on its lower face with longitudinally spaced transversely extending cleats 22 and 23, the cleats 23 at the outer edges being designed to engage the outer faces of the beams 2 and 3 and the cleats 22 to engage the inner faces of said beams whereby said platform is held against lateral movement relative to said beams.

Rising from the outer corners from the platform i are two uprights 24 and 25 which are connected at their upper ends by a cross bar 26 and suitable brace rods 27 and 28 are also connected with the upper ends of said uprights and with. the front edge of the platform near the ends thereof thereby forming a protective railing or backfor the platform to render the person more safe when seated on the platform. The bar 26 is shown adjustable to adapt it for uprights spaced different distances apart.

From the above description it will be obcorrespond. It may also be used on window casings of varying thicknesses by disposing the clamps 6 longitudinally on the beams to properly position them for engaging the inner wall of the room below said casings and by properly positioning the free ends of the legs relative to the outer face of the building and inserting the rods 21 thereof in the proper socket 13 of the depending bars let.

I claim as my invention:

1. A window scafiold supporting bracket comprising a horizontal beam having its opposite ends projecting beyond the window sill, one end extending into the room in' which the window is mounted and the other end beyond the outer face of the building, a longitudinally adjustable clamp mounted on the inner end of said beam for engagement with the inner wall ofthe room below the window sill, an upright support depending from said beam outside the window, said support having an aperture in its upper end and upwardly opening sockets on its outer edge, a loop formed of a metal strap surrounding said beam, the free ends of said metal strap extending downwardly, a pivot bolt disposed between the former and extending through the aperture in said upright support, a pin extending laterally through the outer face of said beam, said pin forming a stop for said loop when the rear edge of the latter abuts the former, a

strap of metal encircling said beam at the outer end thereof, the free ends of said metal strap being bent downwardly to form depending lugs, a bolt extending through said lugs for securing said metal strap to said beam, a pair of brace bars pivotally connected at their upper ends to said bolt, said brace bars diverging toward their lower ends, and a cross rod connecting said brace bars near their lower ends, said cross rod being mounted in one of the sockets of said upright support for supporting said brace bars in adjusted position. I

2. A window scaffold supporting bracket comprising a horizontal beam having its opposite ends projecting beyond the window sill, one end extending into the room in which the window is mounted and the other end beyond the outer face of the building,

an upright support slidably and pivotally mounted on said beam outside the window and depending below the beam, said support having upwardly opening sockets on its outer edge, a pair of brace bars pivoted at their upper ends to the outer end of said beam, the lower ends of said brace bars resting against the outer face of the building, a cross rod connecting said brace bars near their lower ends, said cross rod being mounted in one of said sockets for supporting said brace bars in adjusted position, and an L- shaped clamp mounted for longitudinal adjustment on said beam. one arm of said clamp being provided with at protecting member for engagement with their inner my hand in presence of two subscribing Wail (1)11 the;1 room beoneath the girdow hsill Witnesses. an t e 0t er arm ein rovi e Wit a 100p encircling said b62lI%, .I1d a wedge in- WILLIAM EASTMAN s serted in said 100p for locking said clamp Witnesses:

in adjusted position. M. THAYER,

In testimony whereof I have hereunto set G. E. HAMAKER.

Gopiea of this patent may be obtained for five cent: each, by addressing the "Commissioner or Patents.

Washington, D. 0. 

